RE: Tomcat 5.0 strange crashes

2007-10-05 Thread keglius
Hello, I upgraded my server with additional 1GB of RAM, so now it has 2GBs of RAM. I tried to run the webserver stress test on my application's members area and found that it takes around 5 minutes of stress test with 20 users to crash Tomcat. My application is very resource intensive, however,

Re: Tomcat 5.0 strange crashes

2007-10-05 Thread Mark Thomas
keglius wrote: What is the problem with the webserver (Tomcat 5.5)? Nothing Why does it crash? Looks like your app is using more memory than you expect. Do you, guys, have any suggestions which might be helpful to fix this strange crash problem? Use a profiler (eg YourKit) to see where the

RE: Tomcat 5.0 strange crashes

2007-10-05 Thread keglius
I communicated with my hosting company and I found that my server has installed a non-standard java runtime from BEA Jrockit. As my programmer said that it's not a native sun virtual machine and what I found on BEA web site that if you can't make a thread dump that means that JVM really freezes

RE: Tomcat 5.0 strange crashes

2007-10-05 Thread Caldarale, Charles R
From: keglius [mailto:[EMAIL PROTECTED] Subject: RE: Tomcat 5.0 strange crashes What is the problem with the webserver (Tomcat 5.5)? Why does it crash? You keep using the word crash, but don't provide any evidence that the Tomcat process is actually terminating. It's highly unlikely

RE: Tomcat 5.0 strange crashes

2007-09-25 Thread Peter Crowther
From: keglius [mailto:[EMAIL PROTECTED] OS: RedHat el4 (Linux 2.6.9-42.0.8.EL) The Java application works fine, however sometimes Apache Tomcat 5.0 just crashes without any reasons. A wild stab in the dark... How much free memory do you have? I seem to recall DeadRat has an oom-killer in

RE: Tomcat 5.0 strange crashes

2007-09-25 Thread keglius
Thank you Peter and Caldarale for your answers. I will definately check for those settings. Actually, the server almost doesn't have free memory. 1007.9 MB of 1011.2 MB used; 3.2 MB available RAM I think Tomcat is configured to always use 1GB of memory. The server was working just fine earlier,

RE: Tomcat 5.0 strange crashes

2007-09-25 Thread Peter Crowther
From: keglius [mailto:[EMAIL PROTECTED] Actually, the server almost doesn't have free memory. 1007.9 MB of 1011.2 MB used; 3.2 MB available RAM OK, that's physical memory. What about swap? I think Tomcat is configured to always use 1GB of memory. Then you have a problem anyway. You have